한국 강관 제조업체 | South Korea Steel Pipe Manufacturer

Duplex 2205

2205 duplex stainless steel tubing is the most widely used alloy grade across various industrial sectors. The 2205 duplex stainless tubing has been characterized by high yield strength, which means that the yield strength of this alloy is double or two times that of a conventionally used austenitic stainless steel grade. The 2205 duplex stainless steel pipe also demonstrates good fatigue strength, as well as outstanding resistance to stress related corrosion cracking, crevice corrosion, pitting, erosion corrosion, and general corrosion in severe environments.

Supply Range


Size 5.0 mm - 1219.2 mm
Length Single Random, Double Random, Standard & Cut length
Schedules SCH 5, SCH10, SCH 40, SCH 80, SCH 80S, SCH 160, SCH XXS, SCH XS
Specifications SA 789 alloy 2205, astm a790 duplex 2205, a790 gr 2205
ASTM A999 / ASME SA 999
ASTM A928 / ASME SA 928
ASTM A790 / ASME SA 790
Type Duplex 2205 Seamless / ERW/ EFW / Welded / Fabricated / CDW / DOM / CEW Pipe
Form Round, Square, Hollow, Rectangular, Hydraulic, Coiled, Straight Pipes, “U” Shape, Pan Cake Coils etc.
End Plain End, Beveled End, Treaded Pipe.

Chemical Composition


C N P Si Mn Mo Fe Cr S Ni
1.0 0.03 0.02 2.0 3.0 - 3.5 22.0 - 23.0 0.03 4.5 - 6.5 0.14 - 0.2 Bal

Mechanical Composition


Pipe Density Pipe Melting Point Yield Strength (0.2%Offset) 2205 Duplex SS Pipe Tensile Strength Elongation
7.8 g/cm3 1350 °C (2460 °F) Psi - 80000 , MPa - 550 Psi - 116000 , MPa - 800 15 %